VENSYS ENERGY is a leading manufacturer of gearless wind turbines in the megawatt and multi-megawatt class. More than 33,500 MW installed power already has been connected to the grid worldwide.

The right solution for every requirement

High yields in every location

A wide range of platforms featuring variable tower heights, rotor diameters and generators with different power outputs ensure configurations that are perfectly adapted to local requirements and provide the maximum energy yields for all wind classes even in areas where wind conditions are poor.
VENSYS also erects all kinds of tower systems and has extensive experience with 140-meter hybrid towers as well as single-blade assembly in a demanding construction environment. Low sound emissions are another reason why our turbines are perfect for virtually any location.

Product Portfolio

Wind Turbines

THE IDEA - Brilliantly simple

Fewer components, higher wind energy yield, reliable operation

VENSYS Energy AG with its head office in Neunkirchen/Germany develops and manufactures gearless wind turbines

We have made a name for ourselves with high-performance turbines that feature a permanently magnet-excited multi-polar generator, a low-maintenance toothed-belt drive for the blade pitch system, a simple generator cooling and the full-power converter system that allows for a wide range of grid requirements to be met.

The special turbine design relies on a minimum number of high-quality and long-lasting components. High efficiency, low maintenance as well as the compact design and the advantages of systems that are virtually free of wear ensure consistently higher yields.

We deliver the complete range: from the tower base to the tip of the rotor blade

All the core components of VENSYS wind turbines are designed by our experienced engineers and manufactured in different production facilities of the VENSYS Group.

While the full-power converter and the special electrical pitch system are produced at Vensys Elektrotechnik in Diepholz, the multi-polar generatoris assembled in Neunkirchen. Production of our rotor blades for different power classes is carried out by E-Blades, our subsidiary in Spain.

It is this interaction of perfectly-coordinated key components paired with our own turbine control system which guarantees reliable engine technology – made by VENSYS.

VENSYS 5S Platform

THE NEW 5S

The ongoing reduction of energy costs will be continued with this platform

VENSYS 3.x MW Platform

VENSYS 3.5 MW: The logical upgrade

Based on the VENSYS 3.0 MW platform, the VENSYS 136 with an output of 3.5 MW is the logical upgrade of our proven bestseller.

The gearless alternative from VENSYS for the 3 MW class.

We deliberately dispense with a gearbox, thus reducing repair and
maintenance costs. The product´s main feature, however, is the
significantly increased yield, especially in the partial-load range.

Both the generator and the air-to-air heat exchanger cooling system
are fully encapsulated, dispensing with the need for additional cooling
liquids or oils – environmentally a step in the right direction.

The use of high-quality permanent magnets instead of electrical
excitation power results in higher electricity production.

VENSYS 2.5 MW Platform

With a significant increase in performance – and yet so compact. With a rotor diameter extended to 100, 109 and 112 meters for most high wind and low wind sites.

The VENSYS 2.5 MW platform is the solution for the multi-megawatt range. Gearless and with permanent magnet technology instead of excitation power and gearbox losses. The full enclosure protects the interior of the generator and heat exchanger cooling system from salty and humid air, dust and dirt. And the even more compact toothed belt drive for the blade pitch system on the VENSYS 2.5 MW operates with a minimum of maintenance and is virtually wear-free. Because less is more.

VENSYS has extended the rotor diameter in the 2.5 MW class to 100, 109 and 112 meters - for use in most wind regions. Despite the significant increase in performance and the extended rotor area its tower head mass is remarkably low. Further information can be obtained from the data sheet.

The favourite for the multi-megawatt class

Product advantages:

Dispensing with a gearbox means less repair work and lower
maintenance costs while at the same time enjoying a higher yield,
especially when working in the partial-load range.

The generator and the air-to-air heat exchanger cooling system are
fully enclosed, protecting the system against salty and humid air as
well as dust and dirt.

The blade pitch system with a toothed belt drive works without
lubrication and keeps wear and maintenance to a minimum.

Simply innovative, this is our solution for the 2.5 MW class. Suitable
for all wind conditions and featuring a distinctly low tower head mass.
It complies with all grid requirements and qualifies for the “Systems
Service Bonus”

VENSYS 1.5 MW Platform

Gearless and with permanent magnet technology instead of excitation power and gearbox losses. With an air-cooled generator and air-cooled VENSYS frequency converter for the most varied grid requirements.

With a low-maintenance blade pitch system made by VENSYS using a toothed belt drive featuring its own pitch control system.

With over 11,200 turbines installed, the VENSYS 1.5 MW platform is the world's most frequently installed gearless 1.5 MW turbine of our time.

70, 77, 82 and 87 meters: Offering a choice between four different rotor diameters, it is suitable for the most varied wind zones. Further information can be obtained from the technical data sheet.

The best-seller in its class

Product advantages:

Dispensing with a gearbox means less repair work and lower
maintenance costs while at the same time enjoying a higher yield,
especially when working in the partial-load range.

The air-cooling system on both the generator and the VENSYS
frequency converter further reduces the number of components and
eliminates the need for cooling agents and maintenance work.

The blade pitch system with a toothed belt drive works without
lubrication and keeps wear and maintenance to a minimum.

A gearless VENSYS wind turbine in the 1.5 MW class requires fewer
components, reduces wear and carries a higher yield. It
complies with all grid requirements and qualifies for the “Systems
Service Bonus”

Technology

Five distinctive features

Direct drive

Permanent magnet technology

VENSYS blade pitch system

Full-power converter system

Air cooling

Maximum yield

VENSYS technology is based on the idea of generating a maximum amount of energy while minimizing losses at the same time. Distinctly higher efficiency with increased yields and enhanced economy due to maximum availability are characteristic of this approach

Few low-maintenance components

VENSYS has simplified wind turbines in a revolutionary way. A small number of remaining parts have been consistently improved in terms of performance, durability and wear resistance, resulting in even higher quality in addition to savings in manufacturing, assembly and operation.

Generator

The direct-drive system – all the advantages of gearless machines

Wind turbines designed by VENSYS operate without high-maintenance gearboxes that are prone to wear. They save on elaborate technology and require fewer environmentally hazardous lubricants and consumables than conventional transmission systems. Safe and efficient operation thus go hand in hand.

VENSYS combines the advantages of gearless technology with the generator concept of a synchronous machine with permanent magnet excitation. The rotor speed is transferred directly to the multi-polar generator – completely without any excitation losses. The gearless technology design concept used by VENSYS thus leads to high wind yields and high returns.

High performance paired with a low tower head mass

VENSYS wind turbines are equipped with a directly driven, permanently magnet-excited synchronous generator. The high-quality permanent magnets are fitted to the outer cover of the rotor, reducing heat losses in the generator and providing for simple and efficient cooling.

The shape of the external rotor supports a compact design, making the best possible use of the tower head volume. A maximum generator diameter can be achieved on a reduced surface – yet another aspect why VENSYS is synonymous with enhanced efficiency.

High efficiency = higher yield

The robust VENSYS generators bring together three decades´ worth of know-how in independent research work on permanent magnet technology. The generators of the 2.5/3.0 platform are performance-optimized enhancements with an even larger diameter and greater length yet lower speed.

No excitation losses = even higher yield

Unlike electrical excitation, permanent magnet technology does not have the disadvantage of excitation losses. The savings in excitation power are thus fully available as additional energy yield in VENSYS wind turbines.

This leads to improved efficiency, in particular in the low or partial-load range. In addition, there is no need to transfer the excitation power by means of slip rings, which saves on complex turbine components and reduces production and operation costs.

Blade Pitch

Low-wear and low-maintenance toothed-belt drive

A special feature of VENSYS wind turbines is the lubrication-free toothed belt for transmitting the force between the pitch drive and the rotor blade. Our extremely durable drive system thus prevents wear as a result of corrosion or pitting which can be found in conventional rotor blade adjustment systems using gearing and drive pinions.

The pitch system requires virtually no maintenance. Due to integrated special fibers, the toothed belt is also impervious to shock load and can easily be exchanged if the need arises. The variable-speed rotor blade drive ensures very good incident flow even in the partial-load range.

More safety and long-term cost advantages

Our patented toothed-belt drive for the blade pitch system has stood the test of time in the most diverse locations: impervious to moisture, dirt and temperature changes as well as constant exposure in areas with strong and turbulent winds.

In addition, triple redundancy further enhances safety. The drive of each rotor blade comes with an energy storage device (capacitor), making sure that in the event of power failure the rotor blades can safely be driven into braking position. The long-life capacitors deliver the required power even in low temperatures.

Grid Connection

Connection with power plant properties

Feeding in short-circuit current, quick separation from the grid or bridging short-term voltage drops and sudden voltage rises in the grid: all these are power plant properties that distinguish VENSYS converter systems, making them suitable for universal grid connections.

The total power produced is directed via the VENSYS converter, which allows for the generator to be decoupled effectively from the grid. Power network disturbances and voltage fluctuations thus do not affect the control behavior of VENSYS wind turbines. The converter can even support weak grids.

Generator Cooling

Air cooling: simple, clean, easy to maintain

The generator is one of the core elements in the nacelle of any wind turbine. Generating electricity always entails heat losses, causing the copper windings to heat up. To prevent damage to the generator, the heat must be dissipated.

To do so, VENSYS relies on a simple yet efficient air cooling method. The generators of the 1.5 MW platform are cooled using a passive, maintenance-free air circulation system without any moving parts. The ambient air is directed through special cooling channels on the generator housing

Service

Five distinctive features
The success of VENSYS wind turbines is based on five technological features
founded on the basic principle of generating the maximum amount of energy
while minimizing losses.
Beyond that principle, the VENSYS design philosophy is very simple: limit
yourself to few high-quality construction parts, reduce the number of wear
parts and only use durable components

Our comprehensive care-free package

From planning to reliable operation

Our customer-oriented project management aims at trouble-free operation right from the start. We offer our customers wind turbines adapted to the location of their choice as part of an all-comprehensive package that includes delivery, erection and full service as well as guaranteed availability. We master all assembly techniques, all tower variants and the whole range of sophisticated logistics.

VENSYS service staff and partners make sure turbines are put up professionally, connected to the grid and operated with the highest possible yields- in every corner of the globe.

Operating savety and availability. Around the clock

Harvesting the wind at full capacity for many decades – that is what the VENSYS service concept is all about: permanent monitoring keeps a close eye on the operating states of the turbine and generates the data for systematic optimization. It allows us to actively intervene via a remote maintenance system to guarantee availability – any time and at any location in the world.

Operators can also keep up to speed on the operating state and productivity of their turbine – whenever they like and with a maximum of available data. Our service center is the competent place to turn to for all technical questions. Should the need for service or maintenance work arise, it is coordinated here, with cooperation partners worldwide standing ready to help.